Improvement in folding chairs



2 Sheets-Sheet 1 FOLDING-CHA1R5- Patenter Nov. 7'; 18.76.

2 Sheets-#Sheet 2. W. H. sTE-RNBERQ.

' v Y FOLDING-CHAIRS.

No,184,185, Patented Nov.7, 1876.

UNITED STATES PATENT OEEIcEo WILLIAM H. STERNBERG, OF NORWIOH, NEW YORK.

IMPROVEMENT IN FOLDING CHAIRS.

Specification forming part of Letters Patent N o. 184,185, dated November 7, 1876; application iled October 5, 187 6.

T0 all whom it may concern:

Be it known that I, W. H. STERNBERG, of' Norwich, in the county of Ghenango and in the State of New York, have invented certain new and useful Improvements in Folding Chairs; and dohereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in Which- Figure l is a perspective view of my improved chair, arranged for use. Fig. 2 is a like view of the same folded together and arranged for storage; and Fig. 3 is a vertical central section upon a line passing from front to rear.

Letters of like name and kind refer to like parts in each of the figures.

The design of my invention is to increase the strength and efficiency of the class of chairs to which it relates; and to this end it consists in the peculiar construction and combination ot' the parts which constitute the folding frame ofthe ch:li1,substantially as and for the purpose hereinafter specified.

In the annexed drawing, A and A represent two bars, which have, preferably, the longitudinal conformation shown in Fig. 2, and areconnected together in parallel lines by means of a rung, B, which is secured to and extends between their lower ends, and two slats, G and D, that are placed respectively above the longitudinal center, and atthe upper ends of said bars. Pivoted upon the inner face of each bar A, below its longitudinal center, is a bar, E, which has about one-half the length of the former, and has the same longitudinal shape as the lower portion of said bar A, but is arranged with its curves opposite to those of the latter.

The bars E and E are connected together at their upper and lowerends by two run gs, F and G, respectively, and are therefore compelled to move together upon their' pivotal bearings. Pivoted at one end upon the inner face of each bar A, at or slightly above its longitudinal center, is a bar, H, which, from thence, extends downward, and, at its lower end, rests upon the upper rear edge of thebar E. A metal link or bar, I, is pivoted at one end upon the inner face, at the lower end ot' said bar H, and from thence, extendingforward and slightly upward in a curve, has its opposite end pivoted upon the inner face of said bar E. A rung,K, extending between the lower portions of the brace-bars H and H, and a second rung, L, extending between the upper portions of the same, completes the frame of my chair. A seat, M, composed of cloth or other flexible material, is secured around and extends be` tween the rungs F and L. The braces H and H afford a perfect support for the back, and insure the relative position of pa rts when under the pressure that is caused by the weight of a person, anyincrease in such weight operating to cause said parts to bear more firmly,

and to render the chair more inflexible. If

desired, an upholstered or a wooden seat may be substituted for that described.

rEhe chair shown possesses an unusual de: gree of strength without material increase in weight over chairs of ordinary construction.

Having thus fully'set forth the nature and merits of my invention, what I claim as new 1s- In combination with the bars A and E, which are pivoted together, as shown, the brace-bar H, pivoted at its upper'end to or upon said bar A and having its lower end connected to or with said bar E by means of the link I, in'the manner and for the purpose substantially as specified.

In testimony that I claim theforegoing I have hereunto set my hand this 15th day ot' September, 1876.

WILLIAM H. STERNBERG.

Witnesses:

W. H. GUNN, C. H. BUTTON. 

